Patents Assigned to Leak Surveys, Inc.
  • Chemical Leak Inspection System
    Publication number: 20170122833
    Abstract: A method of visually detecting a leak of a chemical emanating from a component includes aiming a passive infrared camera system towards the component; filtering an infrared image with an optical bandpass filter, the infrared image being that of the leak; after the infrared image passes through the lens and optical bandpass filter, receiving the filtered infrared image with an infrared sensor device; electronically processing the filtered infrared image received by the infrared sensor device to provide a visible image representing the filtered infrared image; and visually identifying the leak based on the visible image. The passive infrared camera system includes: a lens; a refrigerated portion including the infrared sensor device and the optical bandpass filter (located along an optical path between the lens and the infrared sensor device). At least part of a pass band for the optical bandpass filter is within an absorption band for the chemical.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 4, 2017
    Applicant: Leak Surveys, Inc.
    Inventor: David W. Furry
  • Chemical Leak Inspection System
    Publication number: 20130250124
    Abstract: A method of visually detecting a leak of a chemical emanating from a component. The method includes: aiming a passive infrared camera system towards the component; filtering an infrared image with an optical bandpass filter, the infrared image being that of the leak; after the infrared image passes through the lens and optical bandpass filter, receiving the filtered infrared image with an infrared sensor device; electronically processing the filtered infrared image received by the infrared sensor device to provide a visible image representing the filtered infrared image; and visually identifying the leak based on the visible image. The passive infrared camera system includes: a lens; a refrigerated portion including therein the infrared sensor device and the optical bandpass filter (located along an optical path between the lens and the infrared sensor device). At least part of a pass band for the optical bandpass filter is within an absorption band for the chemical.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 26, 2013
    Applicant: Leak Surveys, Inc.
    Inventor: David W. Furry
  • Chemical leak inspection system
    Patent number: 8426813
    Abstract: A method of visually detecting a leak of a chemical emanating from a component includes aiming a passive infrared camera system towards the component; filtering an infrared image with an optical bandpass filter, the infrared image being that of the leak; after the infrared image passes through the lens and optical bandpass filter, receiving the filtered infrared image with an infrared sensor device; electronically processing the filtered infrared image received by the infrared sensor device to provide a visible image representing the filtered infrared image; and visually identifying the leak based on the visible image. The passive infrared camera system includes: a lens; a refrigerated portion including the infrared sensor device and the optical bandpass filter (located along an optical path between the lens and the infrared sensor device). At least part of a pass band for the optical bandpass filter is within an absorption band for the chemical.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: April 23, 2013
    Assignee: Leak Surveys, Inc.
    Inventor: David W Furry
  • Methods for performing inspections and detecting chemical leaks using an infrared camera system
    Patent number: 8193496
    Abstract: A method of visually detecting a leak of a chemical emanating from a component. The method includes: aiming a passive infrared camera system towards the component; filtering an infrared image with an optical bandpass filter, the infrared image being that of the leak; after the infrared image passes through the lens and optical bandpass filter, receiving the filtered infrared image with an infrared sensor device; electronically processing the filtered infrared image received by the infrared sensor device to provide a visible image representing the filtered infrared image; and visually identifying the leak based on the visible image. The passive infrared camera system includes: a lens; a refrigerated portion including therein the infrared sensor device and the optical bandpass filter (located along an optical path between the lens and the infrared sensor device). At least part of a pass band for the optical bandpass filter is within an absorption band for the chemical.
    Type: Grant
    Filed: December 10, 2005
    Date of Patent: June 5, 2012
    Assignee: Leak Surveys, Inc.
    Inventor: David W. Furry